Sukanya Samriddhi Yojana Calculator: How to Calculate Maturity Amount

Planning how much your Sukanya Samriddhi Yojana (SSY) account will grow? This guide explains the calculation formula, provides year-wise breakdowns for different deposit amounts, and helps you estimate the maturity value of your investment.

SSY Interest Calculation Formula

The maturity amount is calculated using the compound interest formula:

A = P × (1 + r/n)^(n×t)

Where:

• A = Maturity amount
• P = Principal (annual deposit)
• r = Annual interest rate (currently 8.2%)
• n = Compounding frequency (1, since SSY compounds annually)
• t = Time in years

Since SSY involves annual deposits for 15 years with interest compounding for 21 years, the calculation works like an annuity for the first 15 years, then pure compound interest for the remaining 6 years.

How SSY Interest Works

• Interest is calculated on the lowest balance between the 5th and last day of each month
• Interest is compounded annually and credited at the end of the financial year
• Deposits made before the 5th of the month earn interest for that full month
• Deposits after the 5th earn interest only from the next month

Pro tip: Always deposit before the 5th of the month to maximize interest earnings.

Maturity Amount for Different Annual Deposits

The table below shows estimated maturity amounts at 8.2% interest rate:

Year-Wise Breakdown: ₹1,50,000 Annual Deposit

Here's how your SSY account grows year by year with the maximum annual deposit:

Note: Years 16-21 have no deposits but interest continues compounding on the accumulated balance.

Step-by-Step Manual Calculation

Let's calculate for ₹50,000 annual deposit at 8.2%:

Year 1

• Deposit: ₹50,000
• Interest: ₹50,000 × 8.2% = ₹4,100
• Balance: ₹54,100

Year 2

• New deposit: ₹50,000
• Balance before interest: ₹1,04,100
• Interest: ₹1,04,100 × 8.2% = ₹8,536
• Balance: ₹1,12,636

Years 3-15

Continue the same pattern — add ₹50,000 deposit, calculate 8.2% interest on the total balance.

Years 16-21

No new deposits. Interest compounds on the existing balance for 6 more years.

Final maturity amount: ≈ ₹23,09,000

Monthly vs Annual Deposit Strategy

You can deposit any amount between ₹250 and ₹1,50,000 per year. Here's how monthly deposits compare:

Important: For maximum interest, deposit the full annual amount as a lump sum before April 5th each year.

SSY vs PPF Returns Comparison

Want to explore PPF? Read our PPF account opening guide.

Tips to Maximize Your SSY Returns

1. Start early — Open the account as soon as your daughter is born to get the full 21-year compounding benefit
2. Deposit early in the year — Make lump sum deposits before April 5th for maximum interest
3. Deposit the maximum — ₹1,50,000 per year gives the highest maturity amount
4. Don't miss deposits — Missing the minimum ₹250 attracts a penalty and disrupts compounding
5. Combine with 80C — SSY deposits qualify for Section 80C tax deduction

Tax Savings on SSY Deposits

SSY deposits up to ₹1,50,000 qualify for deduction under Section 80C. If you're in the 30% tax bracket, depositing the maximum saves you ₹46,800 in taxes annually (including cess).

For a complete list of 80C investment options, check our income tax saving guide. Also explore the National Pension Scheme for additional tax benefits under Section 80CCD.

Conclusion

With the current 8.2% interest rate, Sukanya Samriddhi Yojana offers excellent long-term returns with sovereign guarantee and full tax exemption. By depositing the maximum ₹1,50,000 annually for 15 years, you can accumulate approximately ₹69.27 lakh at maturity — more than 3x your total investment.

Start early, deposit before the 5th of each month, and maximize your annual contribution to get the best returns from SSY.